System-Board Leds - Lenovo x3300 M4 7382 Installation And Service Manual

Table 4. System board jumpers (continued)
Jumper
Jumper name
number
SW2-3 POWER_PERMISSION_N
IMM_SPI_EN IMM_SPI_HALF_ROM_EN_N
Notes:
1. If no jumper is present, the server responds as if the pins are set to 1 and 2.
2. Changing the position of the UEFI boot recovery jumper from pins 1 and 2 to pins 2 and 3 before the server is
turned on alters which flash ROM page is loaded. Do not change the jumper pin position after the server is turned
on. This can cause an unpredictable problem.
3. The physical presence requires manual setting on the server to change the TPM configuration. The TPM is
enabled and physical presence is not asserted by default. The physical presence needs to be asserted to activate,
deactivate, clear or change ownership of the TPM.
Important:
1. Before you change any switch settings or move any jumpers, turn off the server; then, disconnect all
power cords and external cables. Review the information in "Safety" on page v and "Installation
guidelines" on page 36, "Handling static-sensitive devices" on page 38, and "Turning off the server" on
page 24.
2. Any system-board switch or jumper blocks that are not shown in the illustrations in this document are
reserved.

System-board LEDs

This section contains information about the system-board LEDs.
Any error LED can be lit after ac power has been removed from the system-board tray so that you can isolate
a problem. After ac power has been removed from the system-board tray, power remains available to these
LEDs for up to 90 seconds. To view the error LEDs, press and hold the light path button on the system board
to light the error LEDs. The error LEDs that were lit while the system-board tray was running will be lit again
while the button is pressed. The following illustration shows the LEDs and controls on the system board.
The following illustration shows the light-emitting diodes (LEDs) on the system board.
Jumper setting
Force power permission (default off when F/W is
ready)
To allow override of the boot half (Default: jumper
open)
.
Chapter 2 Installing optional devices
33